| TRIASSIC | The first period of the Mesozoic Era. It began 252 million years ago, at the close of the Permian Period. |
| PALAEOZOIC | Era of geological time that began with the Cambrian period and lasted about 375 million years until the end of the Permian period (10) |
| CRETACEOUS | The last of the three periods of the Mesozoic Era. It began 145.0 million years ago and ended 66 million years ago. |
| FLINT | Variety of quartz mined some 4,500 years ago at the site in Norfolk known as Grime's Graves (5) |
| PERMIAN | The largest extinction in Earth's history took place during this time, which lasted from about 299 million to about 252 million years ago and set the stage for the emergence of the dinosaurs. |
| TREMBLED | The first period of sleep ran colourfully for what someone anxious in The Movement would have done (8) |
| PASTE | A type of cement made long ago, at the end (5) |
| TERTIARY | Geological period or era - it must be developed in essay (8) |
| FOREST | During the Mesozoic Era (about 252 million to 66 million years ago) much of Antarctica was covered in dense _______ (6) |
| JURASSIC | The second of three periods of the Mesozoic Era. extending from 201.3 million to 145 million years ago. |
| LIZAMINNELLI | Star of New York, New York who sang its theme song at the close of the film: 2 wds. |
| PENURY | Poverty of a writer at the close of the century (6) |
| EVENTIDE | The time at the close of the day? (8) |
| EVEREST | Relax after the close of the day - it's a high point (7) |
| EVEN | Old or poetic word for the close of the day that also means balanced, calm, equal, fair, flat or uniform (4) |
| EVENING | The close of the day (7) |
| PANGEA | Ancient supercontinent that incorporated almost all the landmasses on Earth. It was surrounded by a global ocean called Panthalassa, and it was fully assembled by the Early Permian Epoch. (6) |
| ATRY | Give it ___: have ago at it ?(1,3) |
| SOUR | Embittered soldier's first period of service initially forgotten (4) |
| ODESSA | City on the Permian Basin |
